I think its referring to Bleach. The japanese name for Bleach is Shinigami
What? No, the Japanese name for Bleach is Bleach.
Oh, it changed.The hostage got shattered!Anyone can see that it's miss Koishi's doing!...Four secured.Ours!?I have your eyeball, sis. If you want it back, then bring 7 shards of eyeballs. Why, it's right where I left it. It's yours if you can find it. But you'll have to search the whole world!
-Youkai KHmm... if you can collect 7 eyes for me, then I'll give your eye back ♡What's up with this shinigami cartoon style!Miss Koishi, you're standing in front of us, right? With your power of subconsious?Yeah.Youkai K... Who is it?Even though she's my sister, she got a very great hobby. Good going.No no no, that frame just blatantly said "sis".That frame is really annoying!